Question 471 Which pollutant gas is released by cud chewing cattle.? A) CO B) CH4 C) NO2 D) CO2 No Details
Question 472 The chemical formula of Baking Soda is? A) Na2CO3.10H20 B) NaHCO3 C) Na2CO3.H20 D) NH4CI No Details
Question 473 Zn and I2 reacts to form Zn12, which one is oxidized? A) Zinc ion B) Iodine ion C) Zinc atom D) Iodine No Details
Question 474 Which of the following gases will have highest rate of diffusion? A) CO2 B) NH3 C) O2 D) N2 No Details
Question 475 Nitrogen is obtained by the thermal decomposition of? A) NH4NO2 B) NH4NO3 C) AgNO3 D) Pb (NO3)2 No Details
Question 477 The concentration unit independent of temperature is? A) Molarity B) Molality C) Normality D) Formality No Details
Question 478 Which of the following has highest chlorine content? A) Chloral B) Iodoform C) DDT D) Carbon tetrachloride No Details
Question 479 The rate of reaction depends upon the? A) Pressure B) Volume C) Concentration of reactants D) Force No Details
Question 480 Philosopher's wool on heating with BaO at 1100°C produce? A) BaZnO2 B) BaO2+Zn C) Ba+ZnO2 D) BaCdO2 No Details